{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018276",
    "entityType": "User",
    "nonce": "0xbb6c67c1c932a6d679f3978be67034a5abcad8605b3be3cb6bb813361a0ccd3e",
    "signature": "0xe4b2482be2f10b7d807a97791156d0263f3db828dd688c636ba7385175859b4d2e1de9f715e470eb98cd7b4b2aa20587386b88e56b29a3892041866d01251ecc1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}